package com.pay.util;

import com.pay.pro.OauthToken;
import com.pay.pro.WxUserInfo;
import com.pay.pro.getToken;
import net.sf.json.JSONException;
import net.sf.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import java.io.*;
import java.net.ConnectException;
import java.net.URL;

/**
 * Created by Administrator on 2016/6/4.
 */
public class CommonUtil {
    private static Logger log = LoggerFactory.getLogger(CommonUtil.class);
    //获取凭证
    public final static String token_url = "https://api.weixin.qq.com/cgi-bin/token?" +
            "grant_type=client_credential&appid=APPID&secret=SECRET";

     //根据用户授权凭证获取用户信息url（此url1）
    public static String wx_get_userinfo="https://api.weixin.qq.com/cgi-bin/user/" +
            "info?access_token=ACCESS_TOKEN&openid=OPENID";
    /**
     * http请求
     *
     * @param requestUrl
     * @param requestMethod
     * @param outputStr
     * @return
     */
    public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) {
        JSONObject json = null;
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化
            TrustManager[] tm = {new MyX509TrustManager()};
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new java.security.SecureRandom());
            // 从上述SSLContext对象中得到SSLSocketFactory对象
            SSLSocketFactory ssf = sslContext.getSocketFactory();
            URL url = new URL(requestUrl);
            HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
            conn.setSSLSocketFactory(ssf);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            // 设置请求方式（GET/POST）
            conn.setRequestMethod(requestMethod);
            if("GET".equalsIgnoreCase(requestMethod)){
                conn.connect();
            }
            // 当outputStr不为null时向输出流写数据
            if (null != outputStr) {
                OutputStream outputStream = conn.getOutputStream();
                // 注意编码格式
                outputStream.write(outputStr.getBytes("UTF-8"));
                outputStream.close();
            }
            // 从输入流读取返回内容
            InputStream inputStream = conn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String str = null;
            StringBuffer buffer = new StringBuffer();
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            }
            // 释放资源
            bufferedReader.close();
            inputStreamReader.close();
            inputStream.close();
            inputStream = null;
            conn.disconnect();
            json = JSONObject.fromObject(buffer.toString());
        } catch (ConnectException ce) {
            log.error("连接超时：{}", ce);
        } catch (Exception e) {
            log.error("https请求异常：{}", e);
        }
        return json;
    }

    /**
     * 获取接口访问凭证
     * @param appid     凭证
     * @param appsecret 密钥
     * @retuget
     */
    public static getToken getToken(String URL,String appid, String appsecret) {
        getToken token = null;
        String requestUrl = URL.replace("APPID", appid).replace("SECRET", appsecret);
        // 发起GET请求获取凭证
        JSONObject jsonObject = httpsRequest(requestUrl, "GET", null);
        if (null != jsonObject) {
            try {
                token = new getToken();
                token.setAccessToken(jsonObject.getString("access_token"));
                token.setExpiresIn(jsonObject.getInt("expires_in"));
                //System.out.print(jsonObject.containsKey("openid")+"123\n");
                //if(jsonObject.containsKey("openid")){
                //    token.setOpenId(jsonObject.getString("openid"));
                //}
                System.out.print(jsonObject);
            } catch (JSONException e) {
                token = null;
                // 获取token失败
                log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getString("errcode"), jsonObject.getString("errmsg"));
            }
        }
        return token;
    }


    /**
     *授权获取access_token
     * @param URL
     * @param appid
     * @param appsecret
     * @return
     */
    public static OauthToken oauthToken(String URL, String appid, String appsecret) {
        OauthToken token = null;
        String requestUrl = URL.replace("APPID", appid).replace("SECRET", appsecret);
        // 发起GET请求获取凭证
        JSONObject jsonObject = httpsRequest(requestUrl, "GET", null);
        if (null != jsonObject) {
            try {
                token = new OauthToken();
                token.setAccessToken(jsonObject.getString("access_token"));
                token.setExpiresIn(jsonObject.getInt("expires_in"));
                System.out.print(jsonObject.containsKey("openid")+"123\n");
                if(jsonObject.containsKey("openid")){
                    token.setOpenid(jsonObject.getString("openid"));
                }
                System.out.print(jsonObject);
            } catch (JSONException e) {
                token = null;
                // 获取token失败
                log.error("获取token失败 errcode:{} errmsg:{}", jsonObject.getString("errcode"), jsonObject.getString("errmsg"));
            }
        }
        return token;
    }

    /**
     * URL编码（utf-8）
     *
     * @param source
     * @return
     */
    public static String urlEncodeUTF8(String source) {
        String result = source;
        try {
            result = java.net.URLEncoder.encode(source, "utf-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return result;
    }

    /**
     * 获取用户信息
     *
     * @param accessToken 接口访问凭证
     * @param openId 用户标识
     * @return WeixinUserInfo
     */
    public static WxUserInfo getUserInfo(String Url,String accessToken, String openId) {
        WxUserInfo weixinUserInfo = null;
        // 拼接请求地址
        String requestUrl = Url;
        requestUrl = requestUrl.replace("ACCESS_TOKEN", accessToken).replace("OPENID", openId);
        // 获取用户信息
        JSONObject jsonObject = CommonUtil.httpsRequest(requestUrl, "GET", null);
        if (null != jsonObject) {
            try {
                weixinUserInfo = new WxUserInfo();
                // 用户的标识
                weixinUserInfo.setOpenId(jsonObject.getString("openid"));
                // 昵称
                weixinUserInfo.setNickname(jsonObject.getString("nickname"));
                // 用户的性别（1是男性，2是女性，0是未知）
                weixinUserInfo.setSex(jsonObject.getInt("sex"));
                // 用户所在国家
                weixinUserInfo.setCountry(jsonObject.getString("country"));
                // 用户所在省份
                weixinUserInfo.setProvince(jsonObject.getString("province"));
                // 用户所在城市
                weixinUserInfo.setCity(jsonObject.getString("city"));
                // 用户头像
                weixinUserInfo.setHeadImgUrl(jsonObject.getString("headimgurl"));
            } catch (Exception e) {
                    String errorCode = jsonObject.getString("errcode");
                    String errorMsg = jsonObject.getString("errmsg");
                    System.out.print("获取用户信息失败 errcode:"+errorCode+"errmsg:"+errorMsg);
            }
        }
        return weixinUserInfo;
    }






}
